Mixing machine



Jan. 2l, 194i. 5 J. CASH l 2,229,238

MIXING MACHINE Filed March 6, 1940 2 Sheets-Sheet l ormeyV Jan. 21, B JCASH MIXING MACHINE Filed March 6,` 1940 2 Shets-Sheet 2 r//ff/ PatentedJan. 21, 1941 UNITED STATES rATENT OFFICE 1 Claim.

The present invention relates to new and useful improvements in mixingmachines particularly for mixing chemicals with Water for water plantsalthough it will be understood, of course,

that the apparatus may be used for any other purpose for which it may befound adapted and desirable.

The primary object of the invention is to provide, in a mixing machineof the aforementioned character having an oscillating movement, a novelconstruction and arrangement whereby a comparatively simple crank andpitman drive may be satisfactorily used as the actuating means. Y

Another very important object of the invention is to provide a mixingmachine of the character described embodying a novel combination andarrangement of agitators `or paddles for thoroughly and expeditiouslymixing the chemicals and water.

Other objects of the invention are to provide a chemical and watermixing machine which will be comparatively simple in construction,durable,

compact and which may lbe manufactured andoperated at low cost.

All of the foregoing and still furthe-r objects and advantages of theinvention will become apparent from a study of the following specica- Ktion, taken in connection with the accompanying drawings wherein likecharacters of reference designate corresponding parts throughout theseveral views, and wherein:

Figure l` is a vertical sectional View through a mixing machineconstructed in accordance with the present invention.

Figure 2 is a vertical sectional View, taken substantially on the line2--2 of Fig. l.

Figure 3 is a View in horizontal section through a corner portion of theinvention, taken substantially on the line 3 3 of Fig. 1.

Referring now to the drawings in detail, it will be seen that thereference numeral I designates a concrete besin of suitable capacity.Mounted on suitable supports 2 in the basin I is a pair of parallelbeams 3. Mounted on the beams 3 are bearings 4. The reference numeral 5designates a horizontal shaft having its end portions journaled in thebearings 4.

rThe reference numeral 6 designates generally v in Fig. 1 of thedrawings.

depending portions. Extending across the upper portions of the arms 8and secured thereto and to the disks 1 are bars 9.

The agitato-r 6 further includes bars I0 extending between the endportions of the bars 9. 5 Secured at spaced points on the bars I0 arenormally horizontal paddles Il. Mounted on the lower end portions of thearms 8 are bars I2. Secured at spaced points o-n the bars I2 arenormally inclined paddles I3. Braces I con- 10 neet the lower portionsof the arms 8 while braces I5 extend between one end portion of the bars9 and the lower portions of a pair of the arms 8. Mounted o-n the upperportion I6 of the basin I is a suitable electric motor Il. Mounted on l5the shaft of the motor I'I is a crank I8. A pitman I9 operativelyconnects the electric motor I'I to one end portion of one of the bars 9.A slot 2B in the basin I accommodates the pitman I9. 20

It is thought that the operation of the machine will be readily apparentfrom a consideration of the foregoing. Briey, as the electric motor I Idrives the crank I8 the pitman I9 oscillates the agitator 6 in the basinI, the paddles 25 II and I3 moving back and forth. The agitator Ii,being mounted eccentrically on the shaft 5, normally rests by gravity inwhat lmay be considered the neutral position illustrated in Fig. 1 ofthe drawings. The construction and arrange- 30 ment is such that whenthe crank I8 is on either dead center the oscillating agitator 6 is atthe limit of one of its strokes or movements. Thus, the tendency of theeccentrically mounted agitator 6 to return by gravity to its normalposition 35 which materially assists the crank and pitman drive pastdead center. The basin I is usually filled to approximately the levelindicated at 2I The crossed elements 8 constitute what maybe consideredX frames 40 forming a part of the agitator 6.

It is believed that the many advantages of a mixing machine constructedin accordance with the present invention will be readily understood andalthough a preferred embodiment of the ap- 45 pfaratus is as illustratedand described, it is to be understood that changes in the details ofconstruction and in the combination and arrangement of parts may beresorted to which will fall within the scope of the invention asclaimed. 60

What is claimed is: Y

A chemical mixing machine comprising a container, an agitator mountedfor oscillation within said container, said agitator comprising an axlerotatably supported in said container, a pair of 10 tally on the upperportions of the crossed bars and projecting therebeyond, bars mounted toconnect the end portions of the second named braces, paddles mounted onthe last named loars in a horizontal plane in spaced relation to eachother, power means located externally of the container, and meansincluding a link connecting the power means to an end portion of one ofthe second named braces.

BARTLEY J. CASH.

